Tamron 24-70 f/2.8 Di VC USD Announced!!! Stabilized 24-70!

Kechar wrote in post #14366852Well the truth is...it's there whether we want to admit it or not.It won't bother me though.I Googled "night bokeh" and saw an awful lot of a absolutely beautiful portraits that had gorgeous bokeh with onioning in the balls. I have primes if I really get concerned anyways.

#1. Is this really a issue?#2. Should it be reported to Tamron? Perhaps they need to know about it?

davidc502 wrote in post #14367984#1. Is this really a issue?#2. Should it be reported to Tamron? Perhaps they need to know about it?

#1 It is technically an issue, but it isn't really a problem unless you let it be... and as I explore later it is far from unique to this lens.#2 Tamron knows.#3 This "issue" happens on other lenses too. I believe that is what Kechar was getting at when he said "it's there whether we want to admit it or not."

kin2son wrote in post #14368479This onion bokeh is really holding me back from upgrading my 24-105. It's not acceptable TO ME. Either Tamron has to release a version 2 soon, or heavily discount this lens.

I think it's going to happen very soon, people will start returning their 'faulty' lens back to b&h and such, they don't have much choice.

I wont be returning my faulty version :P

I think it only shows up under some really odd circumstances. It exists, but hasnt showed it's face much during my use so far. I will likely put up my L for sale within a week. There hasnt been anything to suggest that this lens is inferior except for the possible very very low light focusing. So far so good.

kin2son wrote in post #14368479This onion bokeh is really holding me back from upgrading my 24-105. It's not acceptable TO ME. Either Tamron has to release a version 2 soon, or heavily discount this lens.

I think it's going to happen very soon, people will start returning their 'faulty' lens back to b&h and such, they don't have much choice.

Well, Adorama finally got it in stock, so I just ordered one. I am going exactly that route 24-105->TM24-70VC.

Not sure if I can be happy with many lenses after 70-200II, but I decided to give this one a shot. Besides I really don't feel like dropping another $1K for Canon version without IS. I really wish they'd put IS there... but oh well, maybe sometime in next 6-10 years

Charlie wrote in post #14368513I wont be returning my faulty version :P

I think it only shows up under some really odd circumstances. It exists, but hasnt showed it's face much during my use so far. I will likely put up my L for sale within a week. There hasnt been anything to suggest that this lens is inferior except for the possible very very low light focusing. So far so good.

I think it only shows upon bokeh highlights...the rest is fine ..just some people won't like it and etc.

kin2son wrote in post #14368479This onion bokeh is really holding me back from upgrading my 24-105. It's not acceptable TO ME. Either Tamron has to release a version 2 soon, or heavily discount this lens.

I think it's going to happen very soon, people will start returning their 'faulty' lens back to b&h and such, they don't have much choice.

I don't think there will be more than a small handful of such returns, and if they are they won't be because the lens is "faulty" because of the "bokeh".

You just have no idea how small an issue this is. I have taken about 400 photos with my Tamron 24-70 VC and only a couple shots have onion bokeh that is visible without zooming, and then it is only just barely visible unzoomed, and you wouldn't even notice if you weren't looking for it.

The only person you will show your photos too that will see it 99% of the time is you and a few highly anal-retentive people on these forums.

I had to go back (from end of thread towards start) through over 150 posts to find this gem. You can see a little onioning in the first shots bokeh in the upper left corner if you zoom in, as well as some weird ghosting of background out-of-focus details on that and some of the other photos. They reason I am pointing this out is to show you just how rare it is that you will take photos that end up showing these kinds of weaknesses. The 150+ posts I looked at before that didn't include any photos that really had circular bokeh, and none large enough to potentially see this kind of issue in without zooming until this one. The same rareness should happen with the Tamron, perhaps not quite as rarely since the issue is more pronounced, but still it should be rare enough to not worry about it much.

No onioning in the bokeh, but the bokeh at just F/4 is already going octagonal instead of round. The Tamron should have almost circular bokeh through f/5.6 (will look less circular when zoomed in to max of course).. Another tradeoff to be made along with VC vs. no VC, but again not something you will need to worry about 99% of the time with the Canon, let alone the Tamron.

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